Richard James wrote:
On Mon, 16 Jan 2006, Ricardo Biloti wrote:One problem I have never been able to resolve - I accept that C is better for systems programming, but why on earth does anyone use it for scientific code? Can somebody enlighten me?Obviously, that assertion is a mistake. There are many scientists writing scientific code in C. Few examples of scientific tools written in C: Aztec (a parallel iterative library for solving linear systems) FFTW Gnu Linear Programming Kit Gnu Scientific Library NAG C Library Open Optimization Library PETSc, the Portable, Extensible Toolkit for Scientific computation Seismic Unix SLEPc, the Scalable Library for Eigenvalue Problem computation SUNDIALS (SUite of Nonlinear and DIfferential/ALgebraic equation Solvers) TAO (Toolkit for Advanced Optimization) Regards, -- Ricardo Biloti Department of Applied Mathematics IMECC/UNICAMP
> My question was why do people do it? The question of whether is one to > which I already know the answer. I haven't found anything i can't do in C easily. I couldn't imagine using a language without pointers. Instead of copying 100x100 arrays by value as a function parameter, i can just pass a pointer to it. After looking at some papers on how to solve equations fast where the matrices are sparse, it occured to me that the authors were misguided by a pointerless language. Using pointers, i made a program to solve problems with sparse matrices as one would "by hand", which eliminates all kinds of possible numerical problems with "traditional" methods. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
